Steal opposing creatures, sacrifice them to their owners' graveyards, and let Lorcan hand them back for good.
Sets your commander and theme, then adds about 25 cards that fit plus 20 lands. You fill in the rest.
The top 40 of 300 cards that fit

#3,058$2.26Tiffany Turrill

#11,757$7.74Svetlin Velinov

#10,933$0.32David Rapoza

#4,785$4.05Lucas Graciano

#3,105$1.53Irina Nordsol

#2,850$2.57Yongjae Choi

#14,592$0.11Karl Kopinski

#2,077$0.26Daarken

#2,001$6.20Piotr Dura

#8,231$0.34Whit Brachna

#2,588$0.28

#8,455$0.91Ben Wootten

#2,226$9.83Brent Hollowell

#582$20.54Scott Murphy

#13,736$7.53Matt Cavotta

#27,988$0.49Christopher Rush

#22,735$2.60

#5,807$0.52

#2,636$1.16Rudy Siswanto

#1,572$17.55Yongjae Choi

#2,490$1.85Eric Deschamps

#1,980$0.34

#5,948$0.30Craig J Spearing

#1,392$0.59Zack Stella

#7,167$4.57Todd Lockwood

#7,215$0.32Yigit Koroglu

#3,398$5.62

#392$4.22Sidharth Chaturvedi

#19,784$1.29

#8,197$0.39

#17,376$0.13Zoltan Boros & Gabor Szikszai

#6,568$0.44Daarken

#7,396$0.37

#3,915$6.50Livia Prima

#5,593$8.30Viktor Titov

#1,553$11.42Tomasz Jedruszek

#1,257$28.93Wisnu Tan

#2,468$0.82Scott M. Fischer

#1,843$25.71

#8,459$0.36